Enhancing Security with Custom Sanitizers and Validators in CodeQL
May 18, 2026

Introducing Custom Sanitizers and Validators in CodeQL
CodeQL, the static analysis engine powering GitHub's code scanning, has expanded its capabilities to include custom sanitizers and validators through data extensions. This advancement allows developers to craft specialized security checks tailored specifically to their codebases.
Why Custom Models Matter
By defining custom sanitizers and validators, teams can better identify and mitigate security vulnerabilities unique to their applications. This leads to more accurate detection, fewer false positives, and a more effective remediation process.
Impact on Security Workflows
Incorporating these tailored models into your code scanning workflow enhances the precision of static analysis, empowering developers and security teams to strengthen application security proactively.
Conclusion
The introduction of custom sanitizers and validators in CodeQL represents an important step toward adaptive, context-aware security scanning that evolves with your project's unique needs.